Bobbin support for weft replenishing looms



Dec. 3o,- 1930. J. 'E TINSLEY lffhl Y `BOBBIN SUPPORT FOR WEFT REPLENISHING LOOMS Filed Dec. 5, 1928 [We/ffm Patented Dec'. 30, v1930.

vJenn F. friNsLEY,y onWoRCEsTER, -yivressecrmsnrmsrk AssIGNoR .fro .centreren &.

nNoWLiie `nonni' Wonne,` or, WORCESTER,livressnonusn'r'rs, A. vcenno'linfulrronf' or camssecntrsn'rrs Bonnnv` SUPPORT ronwnnr REPLENISHING VLooms Application fue@ December e, 1928; semina. 323,211

i This invention relates to improvements in f'hohhi'n supports for weft replenishing looms' and it is the general object of the invention i to provide a `yieldalole bobbin support with a `'lexihle or inherently resilient covering# Whioh'Will rpresent tothe bobhin ka ysmooth surface' along which the weft Yend of the hobhin may extend. i

'Y 7 In the 'orm of hohbin support shovvn in I ably7 of liber rO-r some 'similar material. The lowest coil forms ywith the tip a small crevice I or crack into Which the weft end o a hohloin moving toward transfer position, may fall:

l/Vhen this happens theivet end hrealrsat-thef time of transfer with resultant stoppage ofy ico-pending' applicationSer. No'. 251,992lled hy King? there -is -set lforth a bohhin support -f'ormediof aV pieceof vvirerc'oiled on itselfin The coilsare Wound oi substantially the'same diameter and in the lowerend `of the spring there is inserted a hohhin supporting tip or plugv made preferthe loom. It is animportant object of my present'invention tovprovide a cover for the tip and a portion at least of the coil spring toigive said 5 support a continuous smooth surface along which they liiohloiny and its thread may slide'. i

In. multicolor weft repl'enishing`inecha`v ,nisms there is usually employed /alsocalled n cradle which' rocks ion its axis to dischargey Y a loololoin from oneo the reserve stacks so e A that saidv bobhin'inay move toward' transfer may leave the Vhohhin imperfectly placed With respect tothe transfer hammer at the time of By covering` a portion vor all of. the support vvlthfa liexible surfaceivhicli alsof?- transfer.

has a relativelyhigli co-eii'icient or friction,

suchefor instanceas ruloher l ,ani able toretard'the downivardy movementk oiA the loohlnnl sulicientljy to prevent the rebounding out not Vunder the transerrerhammer. Y j:

` Y In previouslymade coil spring hobbm sup-y v enough to cause the hohbin to arriverv too late,V

ports the lcoils'have allY` been Wound closely together Withthe result' that if the lower end f' lnheingdischarged the hohbin isY given a quick doivnivardrmovement and it .oo-f casionally happens thatthismovement Will cause a slight amount of'rehounding .vvnichf of the support be subjected to pressure acting along the axis of the supporlJ toward the holder for the latter said support ivill he unali-le to yield except hy breakage, dueto the fact that the coils are closed.k If certain of the coils are spaced to permit compression from the bobhin Will become entangled r.with Vsaid open coils in a manner similar to the entanglement caused When the previously men tionedy supporting tip orplug is used.l It is a further. object of my invention tofuse an elastic covering for the: open coils `of thesup'- portso that ksaid Vcoilsivill not-,he exposed to the Weftends and a continuous smooth .sur-

pressihle by a force acting substantially parallel to its axis. f t .y K Y ylilith theseand otheriohJects in view 'which will appear as the descriptionproceeds my invention resides in thecomhination and ar-fV rangement .of parts hereinafter described and l set forth in the claims. I Y

ln the accompanying draWingsWhei-'ein I ,have shown tivo specific uses for myinvention, Y* .f p. .Y

Fig. l' is a vertical transverse section through a fourfcolor magazine showing the same equipped -With the preferred orinoiE support, l A

of Fig. 1,.V

Fig'. 8 is Y tion on line -ofFigL Fig. l is a view similar to la section Online eloololoinsupport,

Fig. 5 shows the action of the form of sup ,port shown .Il when enga ged hy amisf placedhohbimand y Fioz G is an enlargeddetailed lonoitudinal C d t3 section-on line -6-6 through .thev lower end fof the `forwardhohlon support jshovvn in .-Referringto Figs. and 2,,1l have provided a magazine designated generally atjMlhaving an outer plate 10. provided Witlnverticaly spaced vhohloin..tip receiving slots' or guides 1l.. Thev oppositeside of the kmagazine Fig'. 2 is a horizontal.sectiononline en enlarged detailed vertical seca `there jis danger that the weft end extending' f lface will he presented to thevhobhin and its riveft, the support at the-same time being com# Will'be restored to `its'normal position.y It

Aand compressing more or less to the same degree asdothe coils 82..

'. From the foregoing it Willbe seen that I fhaveprovideday very simple meansjfor covf 5,gering coil spring bobbin support Yso as .to

,ampid entanglement of the vveft `ends by the f coils ofthe spring support; ,be seen that in `the modified forni tliebobbin t" will vfurther support` iscompressible in a; direction parallel to' or inline With itsaxisand that after the deforming strain isl removed thev shield f# fris preferable tohave the internal vdiameter of Vthe shields 25 land 341 slightly less than the .external diameter of the parts over which l Vthey fit so that said shields serve by tllfl own resilience to hold themselves in position. l/VithY respect to Figlil it Will also be understood that the open coils which 'form the f might receive the weft threads covered by the shield so that vthe bobbins may move free-r coiled 'en itselfand yieldable in any angular fhavingfcoilsvvhichare spacedto permit a pore;

ly toward transfer position yWithout interrupfion due to entanglement of the weft ends.

Having thus `described my invention it Will be seen that changes and modifications may' be made therein by those skilled in the art Without departing fro-iii the spirit and scope of the invention and Ido not Wish to be liinr ited to the details herein disclosed, but What`- I claim is :y Y l. In a weft replenishing loonihaving re serve bobbins Y which are movable toward r transfer position, a support to assist-.in hold-1.

ing a bobbin in transfer position, said support including a coilspring, and a resilientcoveringfor saidA spring made of inherently elastic material to be engaged yby the .bobbin and the weft and extending therefrom as the bobbin moves tovvardtransfer position.

2. Ina weftv replenishing loom having reef serve bcbbins which are movable toward transfer position, a bobbin supporting Wire" direction with respect to the axis ofthe sup.

port, and a coveringforthe ysupport mandes, Y ofinherently elastic material to bey engaged-f by a bobbin and the weft ends extending; from the latter the bobbin moves towardl transfer position.

3; In arjweft replenishing loom having reserve bobbins which are movableV toward transfer position, a fboboin supportino" coil which is yieldable in any angular dili;

eso

rection with respect tothe axisv of saidspring7 and a rubber tubular coveringtting overk the springfand positioned to beengaged by a bobbin and the weft extending therefrom as the bobbin movestovvard transfer position. y

Ll. In a weft replenishing loom having reserve bobbins .which are movable toward `transfer position, a bobbin supporting coil `spring the bobbin supporting portion of which is yielda'blein any angular direction With respect to the normal axis of the spring,

and a shield for saidspringV foi-ined of flexible material which" may yield in any angular direction with respect to the normal axis of the support, said Vshield having a continuous-l surface located to be rengaged bythe -bobbin `andthe Weft extending therefrom asthe bobbinnioves toward transfer position.. Y 5;"In a weft replenishingloom having reserve bobbins which are movable toward ytransfer position, a support toassist in yholding a bobbi'n in transfer positionaiid a flexible covering' for said'bobbin support capable of flexing at any point along the length there@ of and'positioned to .engage a bobbiii and tno thread extendingtherefroin `Which is moving toward transfer position. y 1,;

` 6.,Ifn-a weft replenishing loom having `reserve bobbiiis which are. movable toward transfer position, a supportto assist'inv-holdfv transfer position', said: covering presenting a substantially .continuous surface to the yweft endofthe'bobbin independently of the surfaceof the support. l s i? 7. Ina Weftfreplenishingloom having reserve bobbins which are movable tovv'ard` transfer .positioi'nlasupport to yassist in holdfinga vbobbinin, transfer position said-,sup-4 port including a spring certain ofi-the coilsu of which are open and spaced from each other,

and `a' vflexible covering for the l,support lying over the coils which are spaced and k'presenting 'a substantially continuous surface 'to a bobbin kwhich moves ralong the support toward-transfer position.` f Y 8. In a Weftrreplenishinig looinhaving rev; seive, bobbins which:Y are movable Atoward ,transfer position, a' support to assistin :holding abobbin'intransfer position, Asaid'support includinga Wire coiledionltself and.. i

Wlienthe thread andV y'bobbiii are movedy to# .--vvarc`l'transferposition.l f

9. In a Weft replenishingloomxhaving re-V serve.' :bobbins `Which are Vmovable toward transferlpositionga support torassistin hold-` ing a' bobbin` in': transferV position, sai d vsup izo portincluding a metallic subst-ance and'hav- 'ing' a compressible non-continuous surface which. lies along the path of movement o f the n 4ing loom, said bobbin ,support formed of a coil spring having a compresjsible portion and an inherently resilient compressible cover' for Y bobbin moving toward transferposition, and a flexible cover for said non-continuoussurface to present a continuous surface to the bobbin and the thread extending therefrom when the bobbin and thread are movingtowardltransfer position.

10. In a weft replenishing loom having reserve bobbins which are movable toward transfer position, a support to assist in holding a bobbin in transfer position, said support having a metallic compressible portion and having a non-metallic covering for the" compressible portion to be engaged by a bobbin and the thread extending therefrom which is moving toward transfer position.

11. Inv a weft. replenishing ,niechanisim means defining a pathway along which bobbins may move toward transfer position, a coil sprmg bobbin support extending intoy the pathway, that portion of the support lying in the pathway being formed of spaced coils, and aflexible cover for that portion of the support which extends intothe path of the bobbin to present to the latterrand the thread extending therefrom a substantially continuous surface.

cated under said compartment and having one part lying on one side toward the transfer position of a bobbin and the other part lying on the other side of said compartment, said. support being formed of a coil spring having `"the first named part formed of spaced coils,

anda flexible device lyingabove said spaced` coils to'present a substantially continuous sur-1 face to a bobbin and the weft end extending therefrom which is vmoved toward transferv position.

the coils and present "toa thread a substantially continuous surface.`

14. A bobbin support for a weftA replenishy 12. Inr a weft replenishing mechanism,

means defining a substantially vertical compartmentalong which bobbins may move to-V ward transferposition, a bobbin support lo-n bobbin support for a weft replenish- 'ing mechanism, said support comprising a coil spring and having la flexible and com- "pressible shield tofcover the spaces between van inherently flexible compressible cover for said compressibley portion, said cover being iheld tothe. support by its 'own resilience.

18. A bobbin supp/ ort having compressible and non-compressible portions, the compressible portion having a non-continuous surface to lie in the path of movement of a bobbin moving toward transfer position, and a flexible cover for the compressibleportion of the support. y

In testimony whereof I have hereunto affixed my signature. 1

JOHN F,y TINSLEY.

I ing loom,-said support being formed of a ywire coiled onitself in the form of a spring, andan inherently flexible cover extending above the:

Yportion of said spring andy having a continuous surface covering the spaces between vcoils of thespring to be engaged by a. bobbin.

15.- A bobbin support for a weft replenishling loom, said support being formed of a coil 'spring .a portion of which is compressible, and

a flexible compressible covering for said compressiblerportion.

16; A bobbin support for a weft replenishing loom, said bobbin support kformed of a kcoil spring having. a compressible portion and 

